Pocket-knife.



No. 824,148. PATENTHD JUNE 26, 1906.

, A. S. ROBERTS.

POCKET KNIFE. APPLICATION FILED AUG.31,1905.

. [NI/5N7 01a 7 dam BYLZ WVM;

- Attorneys ammo STATES PATENT" oFFroE.

Specification of Letters Patent.

Patented June 26, 1906.

Application filed August 31. 1905- Serial No. 276.566.

To all whom it may concern:

Be it known that I, ALBERT S. ROBERTS, a

i citizen of the United States, residing at Hillstions of elementssubstantially as hereinafter described, and particularly pointed out inthe subjoined claim. a

The principal object of the invention is to simplify the constructionand reduce the cost and size of pocket-knives having a series of bladesby providing for said series ofiblades a single back-spring of eculiarconstruction having spring elements or the several blades. This objectis well accomplished by the construction illustrated in the accompanyingdrawings, in which- Figure 1 is a side view of'a knife embodying myimprovements, the handle being shown as broken away intermediate of itsends to disclose the internal parts of the knife. Fig. 2 is a lonitudinal section on the line 2 2 of Fig. 1. Fig. 3 is a perspective viewof the back-spring. Fig. 4 is an end view of the device.

The same numerals of reference designate the same parts in the severalfi ures.

1 designates a casing or handde, of any suitable construction andmaterial, open longitudinally along its opposite sides. In this casingor handle are mounted the series of blades 2, 3, 4, and 5 in pairs 2 and3 and 4 and 5, the members of a pair, as 2 and 3, being arranged atopposite sides of the longitudinal center of the andle. A knifecomprising four of such blades constitutes the best embodiment of theinvention; but this number may be reduced or increased without departingfrom the spirit of the invention. These blades are pvploted at theirends, as usual, as shown at 6. on four of such blades are employed, twoof them, as 2 and l, will be pivoted at their ends at the respecttiveends of the handle 1 at one side of the longitudinal center thereof, andwill project from one of the open longitudinal sides of said handle,while the other two, as 3 and 5, of said blades will similarly bepivoted at the ends of and project from Ellie other open longitudinalside of the han- The back-spring 7 is arranged within the interior ofthe handle or casing 1 between said airs of blades. It comprises a body8, fixedly secured to the handle and having its end or ends formed witha recess or recesses 9, thus providing s ring elements or arms 10 forthe respective b ades. In the form shown to exemplify the invention bothends of-the body 7 are formed with such recesses 9, whereby four of suchspring elements are provided, one for each of the four blades, two ofsaid armsprojecting in the same direction from one end of the body 7 andthe other two similarly projecting from the other end of said body.

' Having thus described the invention, what I believe to be new,and'desire to secure by Letters Patent, is

A knife comprising a handle formed with a pair of spaced longitudinalsides united at their ends, a back-spring disposed within the spacebetween the sides of the handle and having rigid connection with saidsides, blades pivotally mounted between the sides of the handle andoccupying the same lon itudinal plane as said back-spring, said bacspring comprising a body having bifurcated ends, the furcations servingas spring-fin ers and being in the same plane with one anot er and withsaid blades, said blades engaging said spring-fingers when in their openposi tion and forcing said fingers towar the longitudinal axis of saidback-spring.

In testimonywhereof I affix my signature in presence of two witnesses.

ALBERT S. ROBERTS.

